@farmerman,
farmerman wrote:
That may have even been true 100 years ago, but it holds no water today
I do not agree, since while there are Catholics and Jews that live in the proverbial hinterland, the big urban centers still have the majority of Catholics and Jews. In my opinion, most of the Jews that wind up in the hinterland are either professionals, or relatives of a business that was started by a grandfather, or greatgrandfather 100 or so years ago. And they tend to be Reformed, not Orthodox.
My point stands, in that religion keeps people physically separated, since a majority of people like to live either amongst their own, or folks they feel comfortable with.
One can even see this regionally amongst Protestants, in that the midwest has many German/Scandanavian-Americans, while the south tends to be highly Anglo-Saxon.